1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef _LIBCPP___TYPE_TRAITS_ADD_POINTER_H 10 #define _LIBCPP___TYPE_TRAITS_ADD_POINTER_H 11 12 #include <__config> 13 #include <__type_traits/is_referenceable.h> 14 #include <__type_traits/is_same.h> 15 #include <__type_traits/remove_cv.h> 16 #include <__type_traits/remove_reference.h> 17 18 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 19 # pragma GCC system_header 20 #endif 21 22 _LIBCPP_BEGIN_NAMESPACE_STD 23 24 template <class _Tp, 25 bool = __is_referenceable<_Tp>::value || 26 _IsSame<typename remove_cv<_Tp>::type, void>::value> 27 struct __add_pointer_impl 28 {typedef _LIBCPP_NODEBUG typename remove_reference<_Tp>::type* type;}; 29 template <class _Tp> struct __add_pointer_impl<_Tp, false> 30 {typedef _LIBCPP_NODEBUG _Tp type;}; 31 32 template <class _Tp> struct _LIBCPP_TEMPLATE_VIS add_pointer 33 {typedef _LIBCPP_NODEBUG typename __add_pointer_impl<_Tp>::type type;}; 34 35 #if _LIBCPP_STD_VER > 11 36 template <class _Tp> using add_pointer_t = typename add_pointer<_Tp>::type; 37 #endif 38 39 _LIBCPP_END_NAMESPACE_STD 40 41 #endif // _LIBCPP___TYPE_TRAITS_ADD_POINTER_H 42